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Orlymanite Mineral Data + |
General Orlymanite Information |
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| Ca4Mn++3Si8O20(OH)6·2(H2O) | |||
| Molecular Weight = 1,007.87 gm | |||
| Calcium 15.91 % Ca 22.26 % CaO | |||
| Manganese 16.35 % Mn 21.11 % MnO | |||
| Silicon 22.29 % Si 47.69 % SiO2 | |||
| Hydrogen 1.00 % H 8.94 % H2O | |||
| Oxygen 44.45 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Ca4Mn2+3Si8O20(OH)6·2(H2O) | |||
| Part of a vein assemblage. One specimen known. | |||
| Approved IMA 1990 | |||
| Wessels mine, Kalahari manganese field, Cape Province, South Africa. Link to MinDat.org Location Data. | |||
| Named for Orlando P. Lyman (1903-1986), founder of Lyman House Memorial Museum, Hilo, Hawaii. | |||
| IMA1988-029 | |||
Orlymanite Image | |||
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Orlymanite Crystallography |
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| a:c = 1:3.74166 | |||
| a = 9.6, c = 35.92, Z = 5; V = 2,866.88 Den(Calc)= 2.92 | |||
| TrigonalSpace Group: P 3-,P 3 | |||
| By Intensity(I/Io): 3.6(1), 1.84(0.9), 3.13(0.8), | |||
Physical Properties of Orlymanite |
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| [0001] Perfect | |||
| Dark brown. | |||
| 2.7 - 2.8, Average = 2.75 | |||
| Translucent | |||
| Platy - Sheet forms (e.g. micas). | |||
| Rosette - Bundled tabular aggregates resembling rose flower petals. | |||
| 4-5 - Fluorite-Apatite | |||
| Vitreous (Glassy) | |||
| light brown | |||
Optical Properties of Orlymanite |
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| dark brown. | |||
| pale brown. | |||
| CI meas= 0.002 (Superior) - where the CI = (1-KPDmeas/KC) CI calc= 0.06 (Fair) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2048,KPDmeas= 0.2175,KC= 0.2179 |
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| Uniaxial (-), w=1.598. | |||
Calculated Properties of Orlymanite |
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relectron=2.73 gm/cc |
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| Fermion Index = 0.01084 Boson Index = 0.98916 |
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PEOrlymanite = 6.91 barns/electron |
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| GRapi = 0 (Gamma Ray American Petroleum Institute Units) Orlymanite is Not Radioactive |
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Orlymanite Classification |
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| 73.2.2b.2 (73)Phyllosilicate Condensed Tetrahedral Sheets | |||
| (73.2)with double and single layers | |||
| (73.2.2b)Reyerite group (Minehillite Subgroup) | |||
| VIII/H.34-25 VIII - Silicates | |||
| VIII/H - Phyllosilicates (layered) Mica minerals with other simple layers, [Si6O15]6- and others | |||
| VIII/H.34 - Gyrolite series | |||
Other Orlymanite Information |
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| NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8) | |||
| Links to other databases for Orlymanite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (MinSocAm) 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 -QUT Mineral Atlas 13 -École des Mines de Paris Search for Orlymanite using: Visit our Advertisers for Orlymanite : Translate Orlymanite Mineral Data : Ask about Orlymanite here : Print or Cut-and-Paste your Orlymanite Specimen Label here :
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